1201402243220 has 24 divisors (see below), whose sum is σ = 2632637960064. Its totient is φ = 459666945056.

The previous prime is 1201402243207. The next prime is 1201402243259. The reversal of 1201402243220 is 223422041021.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1305871544 + ... + 1305872463.

It is an arithmetic number, because the mean of its divisors is an integer number (109693248336).

Almost surely, 2^{1201402243220} is an apocalyptic number.

1201402243220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201402243220 is an abundant number, since it is smaller than the sum of its proper divisors (1431235716844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201402243220 is a wasteful number, since it uses less digits than its factorization.

1201402243220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611744039 (or 2611744037 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 1201402243220 its reverse (223422041021), we get a palindrome (1424824284241).

The spelling of 1201402243220 in words is "one trillion, two hundred one billion, four hundred two million, two hundred forty-three thousand, two hundred twenty".